According to an
update with many photographs on the ASC web-site, the final draft report is expected to be released "on Sep, 2003".
However, the Taiwan News.com article linked to by atakacs above says, "Yong said the ASC, a Cabinet-level agency responsible for investigating aviation accidents, is scheduled to deliver a comprehensive investigative report in September 2004. Before such a report is finalized, all findings are factual information which cannot be lightly used to judge the cause of the flight disaster".
So a factual report will be released in 2003, but not until 2004 will we get the conclusions as to the cause of the crash.
Cheers,